Trait hash_db::HashDBRef[−][src]

pub trait HashDBRef<H: Hasher, T> {
    fn get(&self, key: &H::Out, prefix: Prefix<'_>) -> Option<T>;

    fn contains(&self, key: &H::Out, prefix: Prefix<'_>) -> bool;
}
[−]

Trait for immutable reference of HashDB.

Required methods

fn get(&self, key: &H::Out, prefix: Prefix<'_>) -> Option<T>[src][−]

Look up a given hash into the bytes that hash to it, returning None if the hash is not known.

fn contains(&self, key: &H::Out, prefix: Prefix<'_>) -> bool[src][−]

Check for the existance of a hash-key.

Implementors

impl<'a, H: Hasher, T> HashDBRef<H, T> for &'a dyn HashDB<H, T>[src][+]

impl<'a, H: Hasher, T> HashDBRef<H, T> for &'a mut dyn HashDB<H, T>[src][+]